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124 lines
3.4 KiB
C++
124 lines
3.4 KiB
C++
#ifndef LLARP_CRYPTO_HPP
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#define LLARP_CRYPTO_HPP
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#include <crypto/constants.hpp>
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#include <crypto/types.hpp>
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#include <util/buffer.h>
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#include <functional>
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#include <stdbool.h>
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#include <stdint.h>
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/**
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* crypto.hpp
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*
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* libsodium abstraction layer
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* potentially allow libssl support in the future
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*/
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namespace llarp
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{
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/// label functors
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/// PKE(result, publickey, secretkey, nonce)
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using path_dh_func = std::function< bool(
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SharedSecret &, const PubKey &, const SecretKey &, const TunnelNonce &) >;
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/// TKE(result, publickey, secretkey, nonce)
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using transport_dh_func = std::function< bool(
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SharedSecret &, const PubKey &, const SecretKey &, const TunnelNonce &) >;
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/// SD/SE(buffer, key, nonce)
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using sym_cipher_func = std::function< bool(
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llarp_buffer_t, const SharedSecret &, const TunnelNonce &) >;
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/// SD/SE(dst, src, key, nonce)
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using sym_cipher_alt_func = std::function< bool(
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llarp_buffer_t, llarp_buffer_t, const SharedSecret &, const byte_t *) >;
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/// H(result, body)
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using hash_func = std::function< bool(byte_t *, llarp_buffer_t) >;
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/// SH(result, body)
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using shorthash_func = std::function< bool(ShortHash &, llarp_buffer_t) >;
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/// MDS(result, body, shared_secret)
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using hmac_func =
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std::function< bool(byte_t *, llarp_buffer_t, const SharedSecret &) >;
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/// S(sig, secretkey, body)
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using sign_func =
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std::function< bool(Signature &, const SecretKey &, llarp_buffer_t) >;
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/// V(pubkey, body, sig)
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using verify_func =
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std::function< bool(const PubKey &, llarp_buffer_t, const Signature &) >;
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/// library crypto configuration
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struct Crypto
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{
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/// xchacha symmetric cipher
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sym_cipher_func xchacha20;
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/// xchacha symmetric cipher (multibuffer)
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sym_cipher_alt_func xchacha20_alt;
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/// path dh creator's side
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path_dh_func dh_client;
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/// path dh relay side
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path_dh_func dh_server;
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/// transport dh client side
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transport_dh_func transport_dh_client;
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/// transport dh server side
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transport_dh_func transport_dh_server;
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/// blake2b 512 bit
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hash_func hash;
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/// blake2b 256 bit
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shorthash_func shorthash;
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/// blake2s 256 bit hmac
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hmac_func hmac;
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/// ed25519 sign
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sign_func sign;
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/// ed25519 verify
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verify_func verify;
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/// randomize buffer
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std::function< void(llarp_buffer_t) > randomize;
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/// randomizer memory
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std::function< void(void *, size_t) > randbytes;
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/// generate signing keypair
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std::function< void(SecretKey &) > identity_keygen;
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/// generate encryption keypair
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std::function< void(SecretKey &) > encryption_keygen;
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/// generate post quantum encrytion key
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std::function< void(PQKeyPair &) > pqe_keygen;
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/// post quantum decrypt (buffer, sharedkey_dst, sec)
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std::function< bool(const PQCipherBlock &, SharedSecret &, const byte_t *) >
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pqe_decrypt;
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/// post quantum encrypt (buffer, sharedkey_dst, pub)
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std::function< bool(PQCipherBlock &, SharedSecret &, const PQPubKey &) >
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pqe_encrypt;
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// Give a basic type tag for the constructor to pick libsodium
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struct sodium
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{
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};
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Crypto(Crypto::sodium tag);
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};
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/// return random 64bit unsigned interger
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uint64_t
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randint();
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const byte_t *
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seckey_topublic(const SecretKey &secret);
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const byte_t *
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pq_keypair_to_public(const PQKeyPair &keypair);
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const byte_t *
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pq_keypair_to_secret(const PQKeyPair &keypair);
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} // namespace llarp
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#endif
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